curl is a command line tool for transferring data with URL syntax,
supporting DICT, FILE, FTP, FTPS, Gopher, HTTP, HTTPS, IMAP, IMAPS,
POP3, POP3S, RTSP, SMB, SMBS, SMTP, SMTPS, Telnet and TFTP. curl
supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP
form based upload, proxies, cookies, user+password authentication
(Basic, Digest, NTLM, Negotiate, ...), file transfer resume, proxy
tunneling and a busload of other useful tricks.
